India’s Oil and Gas Industry has an interesting mix of Oil & Gas companies from the government and private sector.Except for some companies providing ancillary and drilling services,most of the companies are huge with billion dollar balance sheet and huge operations as is the case with the Oil and Gas Industry worldwide.Except for Reliance Industries,the upstream sector of oil and gas production and distribution is dominated by government owned companies which are heavily regulated.Despite attempts at liberalizing the APMC and the operations of the PSU Oil Companies,HPCL,BPCL and IOC run billions of dollars in losses as they are forced to sell oil and gas products at below their cost.The government’s policies are mostly ad-hoc compensating these companies through bonds and money transfers.It is quite strange as the minority investors are forced to pay for government subsidies for energy.India’s Oil Subsidies has led to the flourishing of a massive Oil Mafia which does not think twice before killing government officials and has led to poor outcomes for the country.Despite this government stupidity,some government companies like GAIL,OIL India and ONGC which operates in the production and have to bear less of the subsidy burden have grown and performed admirably.In the private sector companies like Reliance,Aban,Great Offshore,Essar have managed to grow rapidly as well with varying degrees of success.Here is the list of the major Oil and Gas Companies in India.